Finite-Temperature Gluon Condensate with Renormalization Group Flow Equations

Abstract

Within a self-consistent proper-time Renormalization Group (RG) approach we investigate an effective QCD trace anomaly realization with dilatons and determine the finite-temperature behavior of the gluon condensate. Fixing the effective model at vanishing temperature to the glueball mass and the bag constant a possible gluonic phase transition is explored in detail. Within the RG framework the full non-truncated dilaton potential analysis is compared with a truncated potential version.

Comments: 22 pages, 11 figures, LaTeX2e; revised version accepted for publication in Phys. Rev. D